hello. my question is this:
2x-y+3=1
-x-3y+2z=-4
-3x+y+7z=-2
yes, that's what he's talking about. i will go all the way to reduced row echelon, i like doing that.
ok, here goes. i will not type what i did to get from one step to another, so if you don't understand something, just ask.
The augmented matrix is:
... ..... ....
now read off your solutions...